Problem with iTunes..freeze and need to shutdown

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i i have a problem with itunes...most time when i play music with itunes i hear a continuos sound from my hard disk and the loading rainbow in my mouse cursor and i only do a shutdown..at restart everything goes fine with other thinks...is a problem with kext?

I am also having this problem I use Chameleon as installed by the Niresh installer. I don't see a preboot partition. Where would it get created? Where would I find the installer logs to upload? OK so I've found the logs and they contain this...
Jan 22 09:22:22 Mac-Pro OSInstaller[565]: PackageKit: PKUpdatePrebootInstallOperation skipping disk because it is not apfs.
My boot disk is an SSD and I did not select any option to convert it when installing High Sierra so I don't know why it wasn't converted by the install.
If I could figure out how to attach the install log I would and I'd ask if converting to APFS would fix the problem. Any ideas how to attach a log?

hello all, i wonder if somebody did sucssesfuly installed ati drivers on one of polaris gpu on 10.9 10.10. or 10.11 mac?
i find yesterday on some russian forum that they did some bios mods on polaris gpus on siera and high siera but i dont understand process.
also no luck for kext emulator on phenom 2 cpu for siera and high siera
i got rx560 sapphire 2gb and i tryed install mac but on gpu it said 8mb and graphic is awfull.
everithing else works exept spdif output for audio and gpu.
i cannot install siera or high siera because of unsupported cpu sse4.1 or sse4.2
my specs are
asus m5a97 r2 evo
phenom II 955 black edition x4 @3.2 g stock
ram 3x4gb ddr3 @ 1333 underclocked because of cpu limitations
rx560 sapphire 2gb
60gb adata sp900
2x500 gb wd blue (1x 2.5" , 1x 3.5")
all your comments are welcome
thanks